feat: 임시 저장한 지원서 수 조회 기능 추가

Author: fivedragon5

src/main/java/org/ject/support/domain/admin/controller/AdminTempApplyApiSpec.java

@@ -2,15 +2,21 @@
 
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.tags.Tag;
+import org.ject.support.domain.admin.dto.TempSavedApplyCountResponse;
 import org.ject.support.domain.apply.dto.TempApplyDetailResponse;
 import org.springframework.web.bind.annotation.PathVariable;
 
-@Tag(name = "Admin", description = "임시 저장된 지원서 관리")
+@Tag(name = "Temporary Apply", description = "임시 저장된 지원서 관리")
 public interface AdminTempApplyApiSpec {
 
     @Operation(
             summary = "임시 저장된 지원서 상세 조회",
             description = "관리자가 지원자의 임시 저장된 지원서의 정보를 조회합니다."
     )
     TempApplyDetailResponse getTempApplyDetail(@PathVariable("tempApplyId") Long tempApplyId);
+
+    @Operation(
+            summary = "임시 저장한 지원서 수 조회",
+            description = "임시 저장한 지원서 총 개수를 조회합니다.")
+    TempSavedApplyCountResponse getTempSavedApplyCount();
 }

src/main/java/org/ject/support/domain/admin/controller/AdminTempApplyController.java

@@ -1,6 +1,7 @@
 package org.ject.support.domain.admin.controller;
 
 import lombok.RequiredArgsConstructor;
+import org.ject.support.domain.admin.dto.TempSavedApplyCountResponse;
 import org.ject.support.domain.admin.service.AdminTempApplyService;
 import org.ject.support.domain.apply.dto.TempApplyDetailResponse;
 import org.springframework.security.access.prepost.PreAuthorize;
@@ -21,4 +22,10 @@ public class AdminTempApplyController implements AdminTempApplyApiSpec {
     public TempApplyDetailResponse getTempApplyDetail(@PathVariable("tempApplyId") Long tempApplyId) {
         return adminTempApplyService.getTempApplyDetail(tempApplyId);
     }
+
+    @GetMapping("/count")
+    @PreAuthorize("hasRole('ROLE_ADMIN')")
+    public TempSavedApplyCountResponse getTempSavedApplyCount() {
+        return adminTempApplyService.getTempSavedApplyCount();
+    }
 }

src/main/java/org/ject/support/domain/admin/dto/TempSavedApplyCountResponse.java

@@ -0,0 +1,11 @@
+package org.ject.support.domain.admin.dto;
+
+public record TempSavedApplyCountResponse(
+        Long count
+) {
+    public TempSavedApplyCountResponse {
+        if (count == null) {
+            count = 0L;
+        }
+    }
+}

src/main/java/org/ject/support/domain/admin/service/AdminTempApplyService.java

@@ -2,6 +2,7 @@
 
 import lombok.RequiredArgsConstructor;
 import org.ject.support.common.util.String2MapSerializer;
+import org.ject.support.domain.admin.dto.TempSavedApplyCountResponse;
 import org.ject.support.domain.apply.domain.ApplicationForm;
 import org.ject.support.domain.apply.domain.Apply;
 import org.ject.support.domain.apply.dto.ApplyPortfolioDto;
@@ -34,4 +35,9 @@ public TempApplyDetailResponse getTempApplyDetail(Long tempApplyId) {
                         .map(ApplyPortfolioDto::from)
                         .toList());
     }
+
+    public TempSavedApplyCountResponse getTempSavedApplyCount() {
+        Long count = applyRepository.countByStatus(Apply.Status.TEMP_SAVED);
+        return new TempSavedApplyCountResponse(count);
+    }
 }

src/test/java/org/ject/support/domain/admin/service/AdminTempApplyServiceTest.java

@@ -2,6 +2,7 @@
 
 import org.ject.support.base.UnitTestSupport;
 import org.ject.support.common.util.String2MapSerializer;
+import org.ject.support.domain.admin.dto.TempSavedApplyCountResponse;
 import org.ject.support.domain.apply.domain.ApplicationForm;
 import org.ject.support.domain.apply.domain.Apply;
 import org.ject.support.domain.apply.dto.TempApplyDetailResponse;
@@ -74,4 +75,36 @@ class AdminTempApplyServiceTest extends UnitTestSupport {
         verify(applyRepository).findByIdAndStatusWithMember(tempApplyId, Apply.Status.TEMP_SAVED);
         assertThat(result.applyId()).isEqualTo(tempApplyId);
     }
+
+    @Test
+    void 임시_저장된_지원서의_총_개수를_조회한다() {
+        // given
+        Apply.Status targetStatus = Apply.Status.TEMP_SAVED;
+        Long tempSavedCount = 5L;
+        given(applyRepository.countByStatus(targetStatus))
+                .willReturn(tempSavedCount);
+
+        // when
+        TempSavedApplyCountResponse result = adminTempApplyService.getTempSavedApplyCount();
+
+        // then
+        verify(applyRepository).countByStatus(targetStatus);
+        assertThat(result).isEqualTo(new TempSavedApplyCountResponse(tempSavedCount));
+    }
+
+    @Test
+    void 임시_저장된_지원서의_총_개수가_0개일_경우_0을_조회한다() {
+        // given
+        Apply.Status targetStatus = Apply.Status.TEMP_SAVED;
+        Long tempSavedCount = 0L;
+        given(applyRepository.countByStatus(targetStatus))
+                .willReturn(tempSavedCount);
+
+        // when
+        TempSavedApplyCountResponse result = adminTempApplyService.getTempSavedApplyCount();
+
+        // then
+        verify(applyRepository).countByStatus(targetStatus);
+        assertThat(result).isEqualTo(new TempSavedApplyCountResponse(tempSavedCount));
+    }
 }